diff options
author | Paul Mackerras <paulus@samba.org> | 2008-03-13 15:26:33 +1100 |
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committer | Paul Mackerras <paulus@samba.org> | 2008-03-13 15:26:33 +1100 |
commit | bed04a4413376265746053be2a9cfbfc80c98ec9 (patch) | |
tree | 8f582294a655f70496cd08aedeb86de31dbad140 /fs/exec.c | |
parent | e37c772e36a7943b2e0bd8f48312e78474c0df15 (diff) | |
parent | c463be3520065ef8c05e3cbdf946c69604e91ceb (diff) |
Merge branch 'linux-2.6'
Diffstat (limited to 'fs/exec.c')
-rw-r--r-- | fs/exec.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/exec.c b/fs/exec.c index a44b142fb46..54a0a557b67 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -173,8 +173,15 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, return NULL; if (write) { - struct rlimit *rlim = current->signal->rlim; unsigned long size = bprm->vma->vm_end - bprm->vma->vm_start; + struct rlimit *rlim; + + /* + * We've historically supported up to 32 pages (ARG_MAX) + * of argument strings even with small stacks + */ + if (size <= ARG_MAX) + return page; /* * Limit to 1/4-th the stack size for the argv+env strings. @@ -183,6 +190,7 @@ static struct page *get_arg_page(struct linux_binprm *bprm, unsigned long pos, * - the program will have a reasonable amount of stack left * to work from. */ + rlim = current->signal->rlim; if (size > rlim[RLIMIT_STACK].rlim_cur / 4) { put_page(page); return NULL; |